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Pulsed laser deposi...
Pulsed laser deposition of yttrium photocathode suitable for use in radio-frequency guns
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- Lorusso, A. (författare)
- University of Salento, Italy; Ist Nazl Fis Nucl, Italy
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- Trovo, M. (författare)
- Elettra Sincrotrone Trieste, Italy
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- Demidovich, A. (författare)
- Elettra Sincrotrone Trieste, Italy
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- Cinquegrana, P. (författare)
- Elettra Sincrotrone Trieste, Italy
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- Gontad, F. (författare)
- University of Salento, Italy; Ist Nazl Fis Nucl, Italy
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- Broitman, Esteban (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten
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- Chiadroni, E. (författare)
- Ist Nazl Fis Nucl, Italy
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- Perrone, A. (författare)
- University of Salento, Italy; Ist Nazl Fis Nucl, Italy
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(creator_code:org_t)
- 2017-11-17
- 2017
- Engelska.
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Ingår i: Applied Physics A. - : SPRINGER. - 0947-8396 .- 1432-0630. ; 123:12
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Yttrium (Y) thin film was grown by pulsed laser deposition (PLD) on a copper (Cu) polycrystalline substrate. Ex situ morphological and structural characterisations of the circular Y film of 1.2 mu m thickness and 3 mm diameter have shown a very low droplet density on the film surface and a crystalline feature with a preferred orientation along the Y (100) plane. Moreover, Y thin film resulted in being very adherent to the Cu substrate and more scratch resistant than Cu bulk. A twin thin film was deposited also on a Cu backflange of a radio-frequency (RF) gun to test the suitability of the metallic thin film as photocathode. It was observed that the Y-coated photocathode was characterised by a quantum efficiency (QE) higher than that of the Cu bulk photocathode even if the presence of space charge effects didnt allow deriving the absolute maximum value of QE of Y photocathode.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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